The usage of icons can give a more professional aspect to your designs, especially if you use high-quality icons. At this point you might say that you won’t find free HIGH-quality icons.

WRONG. You will find quite many high quality icons, because there are quite many designers who do open source work. Open source work brings designers reputation/traffic to their websites/backlinks and possible custom jobs, so yeah it’s worth to do open source work.

In this post i will present a few icon packages that you will definitely find useful at a time

Website Icon Packages:

1) FAMFAMFAM’s silk icon package
FAMFAMFAM’s icons are the most widely used on the web. His icons are used on huge sites like stumbleupon, and 100% sure you saw his icons on many websites. This is the BIGGEST icon package which contains 1000 icons! All the icons come in .PNG format and in 16×16 px sizes.

The silk icon package is licensed under a Creative Commons Attribution 2.5 License.

2) Pinvoke icons package
This is the first version of the package and it contains 200 10×10px icons and 200 16×16px icons. All the icons come in .png format. I think that compared to FAMFAMFAM’s icon package these icons have better contrast and “more life” in them.

The icons are licensed under a Creative Commons Attribution 3.0 license.

3) Iconjoy website icons packages
There are 2 website icon packages provided by Iconjoy. The total number of icons included in the 2 packages is 26×2 = 52. All icons are in 16×16 px format and come in colored and greyscale version.

Icon file Types: .ico, .icns, .tif, .gif, .bmp, .png

4) Sweetie Basepack
A great package of 182 icons which come in .png format and in 3 sizes: 8×8 px,16×16 px and 24×24 px. You are allowed to make derivatives with the included Photoshop documents

License: Creative Commons Attribution-ShareAlike 3.0 Unported

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You will also find a big list of icon resources on MaxPower’s blog

Feed Icon Packages:

1) Zeusbox Studio Feed Icons Pack
Their feed icon package is one of the best ones available on the web. This is the second version of their icon pack. It contains 10 more feed icons than in the first version. The pack is released under the Creative Commons Attribution-No Derivative Works license.

The icons come in 2 sizes: 16×16 px and 32×32 px. All icons are in PNG format

2) IconJoy Web 2.0 RSS icons pack
These icons are really clean and they look great on a bight web 2.0 design. The pack contains 4 different icon types in 2 sizes: 16×16 px and 32×32 px and 4 colors. There isn’t a license attribute specified.

The package contains the icons in .ico, .icns, .tif, .png format along with the .psd source.

3) Bittbox Glass style RSS icons pack
Bittbox approaches the design of RSS icons form a different perspective. I’m talking about the glass effect here. The icons come in 2 different styles: with and without reflection. License: You may not redistribute the icons on your website.

The package contains 217 icons in .ai, .eps, .svg, .png, .jpg formats and in 8 different color combinations.

4) Bittbox Glass style RSS icons pack
Think outside the box! Why make RSS icons with rounded corners or stuffed into boxes when you can create big RSS icons in circles? This is exactly what Dirceu Veiga did. An icon like this looks great on a design where you used big elements(to keep the scale). License: available at Fasticon License page.

You can download the icons for Windows/MAC/Linux in 2 sizes and 4 different colors.

The package contains the 4 icons in .ico format, this meaning you can use them in any size you want

Social Bookmarking icon Packages:

1) Vikiworks Social bookmark iconset I
Package that contains 12 icons in 3 sizes - Large - Medium - Small. These icons are ideal to use on your blog and/or website if you want to “influence” a bit more the visitor to submit to a particular social bookmarking site.

2) Vikiworks Social bookmark iconset II
This second package contains 10 more social bookmarking icons and is the sequel of the first release. These also come in the 3 sizes just like at the first version. It seems that these icons look a bit more professional than those from the first package. Improvements are always welcome

3) Snap2Objects 3d Social bookmarking Icon Package

Add a cool and unusual 3d social bookmarking icon to your blog/website. A 3d icon like this will surely grab attention, maybe a little too much attention Icon pack licensed under Creative Commons Attribution 3.0 License

The package contains 5 icons in different perspectives. The icons come in .png format. Remember that these are vector icons, this meaning that the PDF file is also included in the package

4) Snap2Objects 3d Social bookmarking Icon Package

This is yet an other 3d icon set but the icons are shown from a different perspective. You can notice that their shape looks like a pan which just got pulled out of the oven.The package contains the 6 icons in 2 sizes. They are in .png and .ico format. No license info specified.

Remember that the presented icon sets are just bits of the gigantic resource that is available on the web, so if you are looking for some slightly different icons than don’t hesitate to use Google or most importantly Deviantart!